ROOFING SYSTEMS
The capacity and effectiveness of a green roof in managing rainwater will depend on factors such as the type and composition of the system, the depth of the substrate, and the moisture already in the soil. However, research carried out in Germany found that extensive green roofs can intercept 50% of annual rainfall, and that intensive roofs with deeper substrates can intercept up to 90% of the rainfall (Living Roofs: 2019).
Both green and blue roof systems can form part of a Sustainable Drainage System (SuDS) solution, helping to manage the water as close as possible to where it falls, reducing the quantity and speed of run-off, providing opportunities for evapotranspiration, and limiting the pollution in the run-off. Combined green and blue roofs can be engineered to manage a specific quantity of rainwater based on the characteristics of the site. An experienced supplier of these roofing systems will be able to provide an accurate calculation of its effect.
Choosing a sustainable roofing partner
To ensure that the healthcare site gets the maximum value from the roofing system, it is essential to engage with the right specialist partner who can provide technical advice and guidance on a full range of systems. This will help to ensure
that the roof specification is the most suitable for the site, and meets all the planning and design objectives for both new-build and refurbishment projects. Due to the living components of green roofs, expertise in design, installation, and maintenance of the system is crucial to the success and longevity of the roof. Therefore, selecting a supplier that fully complies with best practice schemes such as the Green Roof Organisation (GRO) Code of Practice is key. Ongoing monitoring is also an important consideration. Establishing a schedule of site surveys to monitor the condition of the roof is always recommended. This will help to highlight and address any issues before they become serious, and allow the organisation to measure the roof’s performance against targets such as biodiversity net gains. Green roofs have an important role to play in improving the health and wellbeing of patients, staff, and communities, by increasing access to green space on healthcare estates. They also help to recreate vital habitats for increased biodiversity and improve rainwater management. Green roofs also have direct benefits for the healthcare facility buildings, which can be further enhanced with the use of PV panels and water management systems (SUDS).
Keith Hills
Keith Hills, managing director of Eco Green Roofs, has 10 years’ experience within the sustainable roofing sector. His expertise in living roofs, stormwater management, and solar solutions, lends itself to his work at Eco Green Roofs, and enables him to enhance and optimise the company’s sustainability credentials, with a focus on efficiency.
hej Authorising Engineers for Ventilation, Fire Safety & Pressure Systems DRLC Ltd.
DRLC provide Authorising Engineers (AE’s) for Ventilation, Fire and Pressure Systems. We offer Premises Assurance Model (PAM) audits and pre-CQC inspection audits.
Our PAM and pre-CQC service enables NHS Trusts
to make informed decisions about the development of their estates and facilities. Our PAM audits help Trusts prioritise investment decisions in order to raise standards in the most advantageous way and provides a way of measuring compliance against legislation.
Our Fire Safety AE’s will carry out an audit of the
Fire Safety Risk Management strategy of your Trust and provide any recommendations for improvement.
Our Pressure Systems Engineers carry out audits of boiler plant, including assessing safe systems of work. We also assess your pressure systems management and supervision.
In addition to the AE Ventilation service we offer a Design Review service for projects which are implementing refurbishments to Air Handling Units (AHUs) or completely new installations of AHU’s.
You Can Be Sure of the Best Value Authorising Engineers
www.drlc.uk sales@drlc.uk
October 2021 Health Estate Journal 87
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